Application progress of oily sludge treatment technology

Kou, Jie; Yang, Wen

doi:10.1109/icetce.2011.5775688

Cited by 3 publications

(3 citation statements)

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“…The incineration method is to dehydrate oily sludge and place it in a high-temperature environment between 800℃ and 1200℃ to convert it into harmless substances such as carbon dioxide and water for discharge [10] . Lin B and others incinerated the oily sludge from Karamay Oilfield in Xinjiang, and the sample of oily sludge residue after incineration met the national emission standards, proving the feasibility of oily sludge incineration [11] .…”

Section: Incineration Methodsmentioning

confidence: 99%

Research progress on resource utilization and harmless treatment of oily sludge treatment technology

2023

AJEE

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During the process of oil extraction and treatment, a large amount of oily sludge is generated, which has certain economic value. Improper treatment not only endangers the environment and human health, but also causes waste of resources. Based on the analysis of the physicochemical properties of oil sludge, this article elaborates on the application scope, advantages and disadvantages of methods such as biodegradation, solidification treatment, mechanical centrifugation, solvent extraction, and pyrolysis from two aspects: harmless treatment and resource utilization of oil sludge. It also explores the development path and direction of harmless treatment, resource utilization, and engineering of oil sludge from the perspectives of safety and economy, providing certain reference suggestions for subsequent oily sludge treatment.

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Section: Incineration Methodsmentioning

confidence: 99%

Research progress on resource utilization and harmless treatment of oily sludge treatment technology

2023

AJEE

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“…Large quantities of oily sludge are generated at various stages of petroleum extraction, collection and refining. 1 It is classified as a hazardous waste by the Ministry of Environmental Protection of the People's Republic of China, 2 the US Environmental Protection Agency 3 and many other countries. 4,5 Oily sludge contains emulsified oil, which causes water, oil and small solid particles to form a stable water-oil emulsion.…”

Section: Introductionmentioning

confidence: 99%

“…Oily sludge is a common pollutant in the petroleum industry. Large quantities of oily sludge are generated at various stages of petroleum extraction, collection and refining 1 . It is classified as a hazardous waste by the Ministry of Environmental Protection of the People's Republic of China, 2 the US Environmental Protection Agency 3 and many other countries 4,5 .…”

Section: Introductionmentioning

confidence: 99%

Research on oil recovery of oily sludge by subcritical/supercritical hydrothermal upgrading

Duan,

Wang,

et al. 2024

J of Chemical Tech & Biotech

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BackgroundSub/supercritical hydrothermal treatment is a promising technology for efficient resource utilization and complete harmlessness of oily sludge, which is significant for promoting the green and sustainable development of the petroleum industry. In this paper, the effects of reaction temperature, reaction pressure, reaction time, and oil content on oil recovery and oil quality (Composition, desulfurization and denitrification, and heavy metal content) are studied in detail.ResultsIt is found that the temperature is the most critical parameter, and the optimal process condition is 350 °C, 20 MPa, 60 min, and 12 wt% oil content, under which the oil recovery rate can reach 70.46%. The content of N and S in the recovered oil can be as low as 0.87 wt% and 0.536 wt%, and the ratio of H/C is higher than 1.6.ConclusionIt was found that reaction temperature had the most significant effect on oil recovery compared with other reaction parameters. Heavy metals are transferred from the oil phase to the water and solid phases, so the content of heavy metals in the oil phase is up to standard. The experiment shows that supercritical water heat treatment of oily sludge is feasible, which made the commercial application of sub/supercritical water thermal oil collection technology possible.This article is protected by copyright. All rights reserved.

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